Since the Infrastructure Agent configuration for
license_key only accepts a 40-character hexadecimal string, it is not possible to split data reporting between two different accounts. Here is the code for this:
# Option : license_key
# Value : 40-character hexadecimal string provided by New Relic. This is the
# only required value in your config file.
# Default: none
You could use the Event API to export and import events between accounts, but that sounds a little tedious. Here is a document about this: Introduction to the Event API | New Relic Documentation
Could you tell us a little more about your use case and reasoning between dividing this data into two different accounts?